Cloud Service Fundamentals

Exam objectives are the official skill domains Cloud Engineer (Associate) tests. Below are the official ALIBABA docs our questions on this objective cite — review them, then practise.

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Official references for this objective

Alibabacloud — Understanding Core Services: Compute, Storage, and Networking Simplified - Alibaba Cloud Community

A service for storing any type of file (images, videos, documents, logs, etc.) and accessing it via HTTP/HTTPS
Alibabacloud — What is OSS - Object Storage Service - Alibaba Cloud Documentation Center

overwrite and delete operations create historical versions of an object instead of permanently removing data. If you accidentally overwrite or delete an object, you can
Alibabacloud — A scalable online database supporting multiple engines for database O&M - ApsaraDB RDS - Alibaba Cloud

Serverless Variable or intermittent workloads Scales to zero; accurate to seconds; reduces costs by up to 70%
Alibabacloud — Alibaba Cloud: The Fundamentals of Cloud Computing

Auto Scaling service will mainly be used to automatically adjust the number of ECS resources
Alibabacloud — Instance overview - Elastic Compute Service - Alibaba Cloud Documentation Center

Cloud disks can serve as both system and data disks. Local disks can only serve as data disks and are available only for big data
Alibabacloud — What is ECS, ECS benefits, purchase, usage, and deployment recommendations - Elastic Compute Service - Alibaba Cloud Documentation Center

Single-instance availability reaches 99.975%; multi-zone availability reaches 99.995%. ECS storage uses multi-replica mechanisms for 99.9999999% (nine 9s) data durability.